[AusNOG] Speaking of DNS...

[Nishal Goburdhan]

On 12 Feb 2014, at 9:23 AM, Mark Foster <blakjak at blakjak.net> wrote:

> ... what's the done method of troubleshooting DNS problems that only affect certain network(s), now that open resolvers are (hopefully) a thing of the past?
> I have semi-regularly struggled with troubleshooting email delivery problems (for example), due to an inability to see what ISP X sees as my MX record.
> 
> Onceuponatime I could just query their DNS servers myself. Now it seems I either have to hope that their helpdesk understand what an MX record actually is, or try to find a shell account on a machine within their network to tinker with...
> 
> I didn't realise that DNS was something that was a candidate for a network of 'looking-glass' systems, but perhaps it is... Need a nice, rate-limited, hard-to-abuse web-based DNS lookup tool to become commonly available, perhaps?


http://www.bortzmeyer.org/dns-lg.html


--n.